Bip39 Recovery Phrase Despite the fact that it employs BIP32 process it is possible to still import BIP39 seeds into Electrum wallet. Also apart from BIp32 There is certainly BIP44 Variation which some wallet use for the era of seeds. It is possible to see the full source code in https://bookmarkprobe.com/story18959448/dbs-bank-address-update-rumored-buzz-on-bip39-phrase